Preprint v1.0 (Aug 11, 2025).This work introduces the Double-Emergence Framework and the Double-Emergence Suppression (DES) mechanism. The central claim is that physics is layered by two successive coarse-grainings:(1) a quantum substrate → emergent spacetime (via modular theory and the KMS/Unruh structure), then(2) spacetime → thermodynamic gravity (via the entanglement first law).Because gravity only appears after the second emergence, its effective coupling is strongly suppressed—explaining gravity’s extreme weakness without inserting a small parameter by hand. What this resolves / reframes Hierarchy problem: GGG is small because of double coarse-graining (information-loss suppression). Cosmological constant problem: vacuum energy is not a bare GR input but an emergent, coarse-grained quantity. Black hole information paradox: gravity is thermodynamic; information bookkeeping lives at the substrate/modular level. Unification: gauge forces arise at the first layer; gravity at the second—unified by architecture rather than symmetry. Nature of spacetime & arrow of time: spacetime and its thermodynamics are emergent, fixing their directionality. Method (three stages) Minimal operational postulates → orthomodular logic → complex Hilbert space (QM). Modular theory + local KMS/Unruh → fixes Lorentzian causal structure (spacetime). Entanglement first law + horizon thermodynamics → Einstein-type dynamics with GGG set by DES. Original contribution & priorityThe terms Double-Emergence Framework and Double-Emergence Suppression (DES) and their unified derivation are introduced here by Christian Sommerseth. This record is the first public disclosure. Files: PDF preprint (and optional LaTeX sources, figure).License: CC BY-SA 4.0.How to cite: Sommerseth, C. The Double-Emergence Framework: Unifying Quantum Mechanics and Gravity. Zenodo (2025). DOI: [insert Zenodo DOI after publishing].